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The present invention provides an apparatus for manufacturing a truss structure using multi-point pins, a method of manufacturing a truss structure using the apparatus, a truss core sandwich panel having the truss structure, and a method of manufacturing the truss core sandwich panel. The apparatus

The present invention provides an apparatus for manufacturing a truss structure using multi-point pins, a method of manufacturing a truss structure using the apparatus, a truss core sandwich panel having the truss structure, and a method of manufacturing the truss core sandwich panel. The apparatus includes a metal plate, clamps, an upper die and a lower die. The clamps hold the metal plate. The upper die has upper multi-point pins which press the metal plate downwards. The lower die has lower multi-point pins which press the metal plate upwards. The metal plate has first and second points that respectively correspond to the upper and lower multi-point pins. The first points are extended downwards by the upper multi-point pins, and the second points are extended upwards by the lower multi-point pins. Thereby, many symmetrical sides are formed in the truss structure, thus increasing the stability of the truss structure.

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1. A method of manufacturing a truss structure using multi-point pins, comprising: providing an apparatus for manufacturing a truss structure using multi-point pins, the apparatus comprising: a metal plate having an outer frame and a plurality of perforations formed inside the outer frame, the perfo

1. A method of manufacturing a truss structure using multi-point pins, comprising: providing an apparatus for manufacturing a truss structure using multi-point pins, the apparatus comprising: a metal plate having an outer frame and a plurality of perforations formed inside the outer frame, the perforations having a same shape;clamps pressing upper and lower sides of the outer frame to hold the metal plate;an upper die comprised of an upper plate; and a plurality of upper multi-point pins arranged under a lower surface of the upper plate in series in rows and columns, the upper die pressing the metal plate downwards; anda lower die comprised of a lower plate; and a plurality of lower multi-point pins arranged on an upper surface of the lower plate in series in rows and columns, the lower die pressing the metal plate upwards,wherein the metal plate comprises a plurality of first points formed at positions that vertically correspond to the upper multi-point pins, and a plurality of second points formed at positions that vertically correspond to the lower multi-point pins, the first points being extended downwards by pressure applied thereto from the upper multi-point pins, and the second points being extended upwards by pressure applied thereto from the lower multi-point pins;wherein heights of ends of the upper multi-point pins differ from each other or heights of ends of the lower multi-point pins differ from each other; machining the metal plate in a two-dimensional net shape by forming perforations having a same shape in the metal plate;clamping the metal plate by pressing upper and lower sides of an outer frame of the metal plate using clamps; andforming the truss structure having a three-dimensional shape through application of pressure to the metal plate using the upper die and the lower die of the apparatus to extend the first points of the metal plate downwards using the upper multi-point pins of the upper die and to extend the second points of the metal plate upwards using the lower multi-point pins. 2. The method as set forth in claim 1, wherein the upper plate or the lower plate has a stepped shape. 3. The method as set forth in claim 1, wherein the upper plate has a curved shape or the lower plate has a curved shape so that heights of ends of the upper multi-point pins or. 4. The method as set forth in claim 1, wherein the upper plate comprises a plurality of upper plates supporting the respective upper multi-point pins, or the lower plate comprises a plurality of lower plates supporting the respective lower, whereby heights of ends of the upper multi-point pins or lower multi-point pins are individually adjusted. 5. The method as set forth in claim 1, wherein each of the perforations has a rhombic shape. 6. The method as set forth in claim 1, wherein each of the perforations has a rectangular shape. 7. The method as set forth in claim 1, wherein each of the perforations has a hexagonal shape. 8. The method as set forth in claim 1, wherein each of the perforations has a triangular shape. 9. A method of manufacturing a truss core sandwich panel using multi-point pins, comprising: providing an apparatus for manufacturing a truss structure using multi-point pins, the apparatus comprising: a metal plate having an outer frame and a plurality of perforations formed inside the outer frame, the perforations having a same shape;clamps pressing upper and lower sides of the outer frame to hold the metal plate;an upper die comprised of an upper plate; and a plurality of upper multi-point pins arranged under a lower surface of the upper plate in series in rows and columns, the upper die pressing the metal plate downwards; anda lower die comprised of a lower plate; and a plurality of lower multi-point pins arranged on an upper surface of the lower plate in series in rows and columns, the lower die pressing the metal plate upwards,wherein the metal plate comprises a plurality of first points formed at positions that vertically correspond to the upper multi-point pins, and a plurality of second points formed at positions that vertically correspond to the lower multi-point pins, the first points being extended downwards by pressure applied thereto from the upper multi-point pins, and the second points being extended upwards by pressure applied thereto from the lower multi-point pins;wherein heights of ends of the upper multi-point pins differ from each other or heights of ends of the lower multi-point pins differ from each other; machining the metal plate in a two-dimensional net shape by forming perforations having a same shape in the metal plate;clamping the metal plate by pressing upper and lower sides of an outer frame of the metal plate using clamps; andforming the truss structure having an upper side, a lower side and a three-dimensional shape through application of pressure to the metal plate using the upper die and the lower die of the apparatus to extend the first points of the metal plate downwards using the upper multi-point pins of the upper die and to extend the second points of the metal plate upwards using the lower multi-point pins;disposing the truss structure between an upper panel and a lower panel; andbonding upper and lower sides of the truss structure respectively to the upper panel and the lower panel.